USPTO Examiner CHEN STACY BROWN - Art Unit 1672

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18680187COMPOSITIONS AND METHODS FOR ENHANCING PRODUCTION, GROWTH, SPREAD, OR ONCOLYTIC AND IMMUNOTHERAPEUTIC EFFICACY OF INTERFERON-SENSITIVE VIRUSESMay 2024May 2025Allow1100YesNo
18403883FLAVIVIRUS VACCINEJanuary 2024September 2025Allow2021NoNo
18566986SENSOR FOR DETECTING BIOMARKERS IN A FLUID SAMPLE AND METHODS OF USEDecember 2023November 2025Allow2320YesNo
18527150NUCLEIC ACID VACCINES FOR CORONAVIRUSDecember 2023January 2026Abandon2640YesNo
18503260STABILIZED CORONAVIRUS SPIKE (S) PROTEIN IMMUNOGENS AND RELATED VACCINESNovember 2023August 2025Allow2211YesNo
18366310MUTATED ADENO-ASSOCIATED VIRAL CAPSID PROTEINS FOR CHEMICAL COUPLING OF LIGANDS, NANOPARTICLES OR DRUGS VIA THIOETHER BINDING AND PRODUCTION METHOD THEREOFAugust 2023October 2025Allow2611YesNo
18330194BROADLY REACTIVE IMMUNOGENS OF DENGUE VIRUS, COMPOSITIONS, AND METHODS OF USE THEREOFJune 2023March 2026Abandon3321NoNo
18309475ANTI-RSV MONOCLONAL ANTIBODY FORMULATIONApril 2023December 2025Abandon3131NoNo
18181974Separation MethodMarch 2023June 2025Allow2820NoNo
18064299IMMUNOGENIC COMPOSITIONS OF HEPATITIS C VIRUS AND USES THEREOFDecember 2022February 2026Allow3811YesNo
18052402Virus-like particles containing RSV antigen protein and vaccines using the sameNovember 2022March 2026Allow4011YesNo
17958148VACCINE FORMULATIONS WITH INCREASED STABILITYSeptember 2022February 2026Abandon4001NoNo
17937234Vectors for Producing Virus-Like Particles and Uses ThereofSeptember 2022February 2026Abandon4001NoNo
17802361CORONAVIRUS VACCINES COMPRISING A TLR9 AGONISTAugust 2022February 2026Abandon4210NoNo
17881816RABBIT HAEMORRHAGIC DISEASE VIRUS (RHDV) VACCINESAugust 2022August 2025Allow3610YesNo
17797570MEASLES-VECTORED COVID-19 IMMUNOGENIC COMPOSITIONS AND VACCINESAugust 2022January 2026Abandon4101NoNo
17879265Compositions for Determining Vaccine PotencyAugust 2022September 2025Allow3751NoNo
17795261REGULATORY T CELL EPITOPES AND DETOLERIZED SARS-COV-2 ANTIGENSJuly 2022December 2025Abandon4101NoNo
17792133TRANSPLANTED CELL PROTECTION VIA INHIBITION OF POLYMORPHONUCLEAR CELLSJuly 2022January 2026Allow4211YesNo
17790259ADENOVIRAL VECTORS ENCODING HEPATITIS B VIRAL ANTIGENS FUSED TO HERPES VIRUS GLYCOPROTEIN D AND METHODS OF USING THE SAMEJune 2022December 2025Allow4210NoNo
17786310POWASSAN VIRAL ANTIGENS AND RELATED COMPOSITIONS, AND USES THEREOF TO VACCINATE AND TREAT PATIENTSJune 2022January 2026Abandon4301NoNo
17784605MUMPS AND MEASLES VIRUS IMMUNOGENS AND THEIR USEJune 2022January 2026Allow4411YesNo
17775094ZIKA/DENGUE VACCINE AND APPLICATION THEREOFMay 2022January 2026Allow4521NoNo
17730043VACCINES FOR TREATING SARS INFECTIONS IN CANCER PATIENTSApril 2022September 2025Allow4010NoNo
17753943COMBINATION OF A POXVIRUS ENCODING HPV POLYPEPTIDES WITH AN ANTI-PD-L1 ANTIBODYMarch 2022December 2025Allow4510YesNo
17642791CHIMERIC FILOVIRUS VACCINESMarch 2022September 2025Allow4210NoNo
17642795LASSAVIRUS VACCINESMarch 2022May 2025Allow3800NoNo
17632943CHIKUNGUNYA VACCINE FORMULATIONSFebruary 2022December 2025Allow4620YesNo
17632946SINGLE SHOT CHIKUNGUNYA VIRUS VACCINEFebruary 2022December 2025Allow4620YesNo
17629115POLYPEPTIDES FOR TREATMENT OF AMLJanuary 2022October 2025Abandon4501NoNo
17616939HEPATITIS B VIRUS-SPECIFIC T CELL RESPONSESDecember 2021February 2026Allow5011YesNo
17595889M1 VIRUS MUTANT AND USE THEREOFNovember 2021September 2025Allow4621NoNo
17507604Surveillance of SARS-CoV-2 Through Mask TestingOctober 2021March 2026Abandon5311YesNo
17602951CD40 Specific DNA Aptamers as Vaccine AdjuvantsOctober 2021August 2025Allow4611NoNo
17291984ALPHAVIRUS NEOANTIGEN VECTORS AND INTERFERON INHIBITORSMay 2021February 2026Allow5711YesNo
17158431VITRO PREDICTION OF IN VIVO HALF-LIFEJanuary 2021July 2025Allow5451YesNo
16739724ANTIBODY PURIFICATION AND PURITY MONITORINGJanuary 2020December 2025Allow6071NoNo
16172487COMPOSITIONS AND METHODS FOR COMBINATION THERAPY WITH DENGUE VIRUS AND DENDRITIC CELLSOctober 2018January 2019Allow310NoNo
16047524RSV-SPECIFIC BINDING MOLECULEJuly 2018March 2020Allow2011YesNo
15545337ANTI-VIRAL COMPOSITIONS CONTAINING PIKFYVE INHIBITORS AND USE THEREOFJuly 2017April 2020Allow3321YesNo
156057455'-TRIPHOSPHATE OLIGORIBONUCLEOTIDESMay 2017June 2018Allow1200NoNo
15523899METHODS AND COMPOSITIONS FOR RECOMBINANT DENGUE VIRUSES FOR VACCINE AND DIAGNOSTIC DEVELOPMENTMay 2017April 2019Allow2411YesNo
15404662MULTI-SPECIFIC ANTIBODIES FOR CROSS-NEUTRALIZATION OF MULTIPLE FILOVIRUS GLYCOPROTEINSJanuary 2017April 2019Allow2721YesNo
15315667METHOD FOR RAPID GENERATION OF AN INFECTIOUS RNA VIRUSDecember 2016April 2019Allow2911YesNo
15315687METHOD FOR RAPID GENERATION OF AN ATTENUATED RNA VIRUSDecember 2016December 2019Allow3622YesNo
15204077DNA VACCINE AGAINST VIRUS OF YELLOW FEVERJuly 2016April 2018Allow2110YesNo
15032338LIVE ATTENUATED INFECTIOUS LARYNGOTRACHEITIS VIRUS (ILTV) VACCINES AND PREPARATION THEREOFApril 2016September 2018Allow2921NoNo
15132436Pestivirus SpeciesApril 2016April 2018Allow2411YesNo
14935281COMPOSITIONS AND METHODS FOR ADMINISTRATION OF VACCINES AGAINST DENGUE VIRUSNovember 2015February 2018Allow2820YesNo
14652066COMPOSITIONS, METHODS OF ADMINISTRATION AND USES FOR TRIVALENT DENGUE VIRUS FORMULATIONSJune 2015September 2017Allow2721YesNo
14439967EFFECT OF HBV ON CLINICAL OUTCOME OF HEPATOCELLULAR CARCINOMA CANCER PATIENTSApril 2015January 2018Allow3340NoNo
14429559VIRUSES ASSOCIATED WITH IMMUNODEFICIENCY AND ENTEROPATHY AND METHODS USING SAMEMarch 2015February 2017Allow2311YesNo
14407012COMPOSITIONS AND METHODS FOR RAPID IMMUNIZATION AGAINST DENGUE VIRUSDecember 2014March 2017Allow2721YesNo
14400642CROSS-REACTIVE ANTIBODIES AGAINST DENGUE VIRUS AND USES THEREOFNovember 2014September 2016Allow2211YesNo
14182731NOVEL NEUTRALIZING IMMUNOGEN (NIMIV) OF RHINOVIRUS AND ITS USES FOR VACCINE APPLICATIONSFebruary 2014March 2016Allow2511YesNo
14165126T-CELL VACCINATION WITH VIRAL VECTORS VIA MECHANICAL EPIDERMAL DISRUPTIONJanuary 2014April 2016Allow2611YesNo
14090221ASSAY METHOD FOR PEPTIDE SPECIFIC T-CELLSNovember 2013April 2016Allow2920NoNo
14039148RSV SPECIFIC BINDING MOLECULESeptember 2013October 2015Allow2511YesNo
14036412PESTIVIRUS SPECIESSeptember 2013January 2016Allow2821NoNo
13984702COMBINATION OF BIOMARKERS FOR THE DETECTION AND EVALUATION OF HEPATITIS FIBROSISAugust 2013December 2016Allow4031NoNo
13942064RECOMBINANT BICISTRONIC FLAVIVIRUS VECTORSJuly 2013August 2015Allow2511YesNo
13825049RECOMBINANT FLAVIVIRAL CONSTRUCTS AND USES THEREOFJune 2013May 2015Allow2620YesNo
13740100DECREASING POTENTIAL IATROGENIC RISKS ASSOCIATED WITH INFLUENZA VACCINESJanuary 2013May 2015Allow2830YesNo
13633436Replication-Defective Flavivirus Vaccines and Vaccine VectorsOctober 2012August 2015Allow3421YesNo
13504464DNA VACCINE AGAINST VIRUS OF YELLOW FEVERAugust 2012March 2016Allow4621YesYes
13492884COMPOSITIONS AND METHODS FOR RAPID IMMUNIZATION AGAINST DENGUE VIRUSJune 2012October 2014Allow2821YesNo
13406153RECOMBINANT FLAVIVIRUS VACCINESFebruary 2012June 2014Allow2821YesNo
13321460Compositions And Methods For The Therapy And Diagnosis Of InfluenzaFebruary 2012January 2014Allow2621YesNo
13357189NOVEL ANTIVIRAL PEPTIDES AGAINST INFLUENZA VIRUSJanuary 2012August 2015Allow4321NoNo
13309498MULTI PLASMIDS SYSTEM FOR THE PRODUCTION OF INFLUENZA VIRUSDecember 2011November 2012Allow1210NoNo
13274285DECREASING POTENTIAL IATROGENIC RISKS ASSOCIATED WITH INFLUENZA VACCINESOctober 2011January 2014Allow2750YesNo
13230209DENGUE VACCINE, PHARMACEUTICAL COMPOSITION COMPRISING THE SAME, NUCLEOTIDE SEQUENCE AND ANTIBODY COMPOSITIONSeptember 2011April 2014Allow3121NoNo
13130559MUTANT PROTEINS OF THE F PROTEIN OF PIV-5 AND PIV-2September 2011August 2014Allow3921YesNo
13130554MUTANT PROTEINS OF THE F PROTEIN OF PIV-5 AND PIV-2September 2011August 2014Allow3921YesNo
13199348Host cell specific binding molecules capable of neutralizing viruses and uses thereofAugust 2011August 2014Allow3510NoNo
13190547Assay for the diagnosis of flaviviral infection using antibodies with high affinity for NS1 protein of flavivirus in hexameric formJuly 2011December 2013Allow2841YesNo
13102685DENGUE CHIMERIC VIRUSESMay 2011March 2012Allow1101YesNo
12995024EXPRESSION AND ASSEMBLY OF HUMAN GROUP C ROTAVIRUS-LIKE PARTICLES AND USES THEREOFJanuary 2011June 2015Allow5461YesNo
12922513REPLICATION-DEFECTIVE FLAVIVIRUS VACCINES AND VACCINE VECTORSDecember 2010April 2014Allow4321NoNo
12956460FLAVIVIRUS FUSION INHIBITORSNovember 2010December 2011Allow1211YesNo
12808565EFFICIENT CELL CULTURE SYSTEM FOR HEPATITIS C VIRUS GENOTYPE 6ANovember 2010June 2013Allow3611NoNo
12809345EFFICIENT CELL CULTURE SYSTEM FOR HEPATITIS C VIRUS GENOTYPE 1A AND 1BNovember 2010June 2013Allow3611YesNo
12600349EFFICIENT CELL CULTURE SYSTEM FOR HEPATITIS C VIRUS GENOTYPE 5AOctober 2010June 2013Allow4311YesNo
12809348PRE-OR POST-EXPOSURE TREATMENT FOR FILOVIRUS OR ARENAVIRUS INFECTIONSeptember 2010March 2014Allow4541YesNo
12301961MYXOMA VIRUS MUTANTS FOR CANCER TREATMENTSeptember 2010April 2013Allow5321YesNo
12869526Preparation of Vaccines Using Photosensitizer and LightAugust 2010February 2014Allow4141NoNo
12309670METHODOLOGY FOR DETECTION, ENUMERATION, PROPAGATION AND MANIPULATION OF BACTERIOPHAGESAugust 2010November 2012Allow4510YesNo
12842854METHODS AND COMPOSITIONS FOR EXPRESSING NEGATIVE-SENSE VIRAL RNA IN CANINE CELLSJuly 2010June 2012Allow2211YesNo
12836856Compositions and Methods Using Herpes Simplex VirusJuly 2010February 2014Allow4321YesNo
12795506IMMUNOPROTECTIVE INFLUENZA ANTIGEN AND ITS USE IN VACCINATIONJune 2010May 2011Allow1120YesNo
12793092Surrogate Markers for Viral Infections and Other Inflammatory ResponsesJune 2010July 2014Allow4931YesYes
12594756MONOCLONAL ANTIBODIES AGAINST DENGUE AND OTHER VIRUSES WITH DELETION IN FC REGIONJune 2010August 2012Allow3410YesNo
12790511COMPOSITIONS AND METHODS FOR ADMINISTRATION OF VACCINES AGAINST DENGUE VIRUSMay 2010August 2015Allow6051YesNo
12790618IDENTIFICATION OF ASTROVIRUS VA1 ASSOCIATED WITH GASTROENTERITIS IN HUMANSMay 2010December 2012Allow3121YesNo
12525168FLAVIVIRUS VACCINE VECTOR AGAINST INFLUENZA VIRUSMay 2010July 2013Allow4821YesNo
12442988NOVEL NEUTRALIZING IMMUNOGEN (NIMIV) OF RHINOVIRUS AND ITS USE FOR VACCINE APPLICATIONSMay 2010September 2013Allow5422YesNo
12770905EXPRESSION OF HIV POLYPEPTIDES AND PRODUCTION OF VIRUS-LIKE PARTICLESApril 2010September 2011Allow1611YesNo
12664778METHOD FOR THE DIAGNOSIS OR THE SCREENING OF AN ARBOVIRUS INFECTION, REAGENTS USEFUL IN SAID METHOD AND THEIR APPLICATIONSApril 2010September 2012Allow3321YesNo
12594774METHODS OF PREVENTING AND TREATING VIRAL INFECTIONS BY INHIBITING THE DelSGYLATION ACTIVITY OF OTU DOMAIN-CONTAINING VIRAL PROTEINSMarch 2010November 2013Allow5022NoNo
12733920FORMULATIONS FOR PRESERVATION OF ROTAVIRUSMarch 2010April 2012Allow2511YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHEN, STACY BROWN.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
4
Examiner Affirmed
0
(0.0%)
Examiner Reversed
4
(100.0%)
Reversal Percentile
91.5%
Higher than average

What This Means

With a 100.0% reversal rate, the PTAB has reversed the examiner's rejections more often than affirming them. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
43
Allowed After Appeal Filing
16
(37.2%)
Not Allowed After Appeal Filing
27
(62.8%)
Filing Benefit Percentile
61.1%
Higher than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 37.2% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

Strategic Recommendations

Appeals to PTAB show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner CHEN, STACY BROWN - Prosecution Strategy Guide

Executive Summary

Examiner CHEN, STACY BROWN works in Art Unit 1672 and has examined 254 patent applications in our dataset. With an allowance rate of 97.6%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 37 months.

Allowance Patterns

Examiner CHEN, STACY BROWN's allowance rate of 97.6% places them in the 89% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by CHEN, STACY BROWN receive 2.43 office actions before reaching final disposition. This places the examiner in the 70% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHEN, STACY BROWN is 37 months. This places the examiner in the 31% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a -2.8% benefit to allowance rate for applications examined by CHEN, STACY BROWN. This interview benefit is in the 7% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 28.2% of applications are subsequently allowed. This success rate is in the 51% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 60.3% of cases where such amendments are filed. This entry rate is in the 86% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 100.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 70% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 90.0% of appeals filed. This is in the 83% percentile among all examiners. Of these withdrawals, 72.2% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.

Petition Practice

When applicants file petitions regarding this examiner's actions, 68.9% are granted (fully or in part). This grant rate is in the 76% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 31.1% of allowed cases (in the 100% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 7.3% of allowed cases (in the 85% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.